Announcement of an aggressive new coca-eradication campaign in Peru was met with a deadly attack on security forces in the targeted production zone. Authorities said "narco-terrorists" attacked a National Police patrol in the Apurímac-Ene-Mantaro River Valley (VRAEM), leaving two troops dead. The VRAEM, a pocket of jungle on the eastern slopes of the Andes, is said to produce 75% of Peru's coca leaf, but the government has until now resisted US pressure to launch an eradication program there, for fear of enflaming the tense situation in the valley. A surviving remnant of the Shining Path insurgency remains active in the VRAEM, offering cocaleros protection from security forces in exchange for their loyalty.

A judge in El Salvador on May 24 sentenced seven accused members of the country's feared mara gang networks to 390 years in prison each for the March 2016 massacre at the town of San Juan Opico. Authorities say the maras kidnapped three day laborers and eight electric company workers at the town, just outside the capital San Salvador—and then killed them, without waiting for a ransom. The mara networks have been factionalizing in a struggle over the cocaine trade through Central America, as well as the lucre from their new sidelines of extortion and kidnapping. The seven sentenced are said to be from a new faction with the disconcerting name of the Barrio 18 Revolutionaries—implying they actually seek to challenge the state, in the style of Mexico's Zetas.

After a near-breakdown in Colombia's peace process last month, Colombia's government is scrambling to revive the disarmament and demobilization of the FARC guerillas—under pressure from a citizen mobilization. The popular networks Marcha Patriótica and Congreso de los Pueblos joined on June 1 for a youth demonstration in support of the peace process, with some 600 holding vigil in downtown Bogotá. (El Espectador June 1; Contagio Radio, May 31) A new deadline of June 20 has now been set for FARC fighters to turn over all their weapons. UN monitors and the FARC say that 30% of the arms have now been handed over to the UN team overseeing the disarmament. (BBC News, June 8; El Espectador, May 30)

Protests have been held in Mexico over the slaying of an award-winning journalist on May 15—the latest in a long line of reporters killed for daring to cover the country's ongoing nightmarish narco-violence. Javier Valdez was founder and editor of weekly newspaper Ríodoce in Culiacán, capital of Sinaloa state and principal stronghold of the notorious Sinaloa Cartel. Ríodoce staff pledged to carry on his work in spite of threats. Valdez was the sixth Mexican journalist killed so far this year.

After threatening to do it for months, the Philippines' ultra-hardline President Rodrigo Duterte on May 23 declared martial law on the conflicted southern island of Mindanao. The declaration takes immediate effect and will last for 60 days—officially. But in his comments upon the declaration, Duterte said it could last up to "a year"—and (not for the first time) favorably invoked the late dictator Ferdinand Marcos, under whose harsh rule the Philippines saw a decade of martial law. "To those who have experienced martial law, it would not be any different from what president Marcos did," Duterte said. "I'll be harsh."

Bolivia and Brazil agreed to a joint plan to fight criminal gangs that operate on their shared jungle border, long porous for drug and arms traffickers. The decision was taken at a Brasilia meeting between Brazil's Justice Minister Osmar Serraglio and Bolivia's Government Minister Carlos Romero on May 13. The plan includes establishment of new border checkpoints in the Bolivian outposts of Bella Vista and Puerto Evo and the Brazilian villages of Costa Marques and Plácido de Castro. It establishes mechanisms for sharing intelligence, and operations to secure control of air-space over the border zone. It also calls for joint military training between the two countries.

Mexico's northeastern border state of Tamaulipas—just across from Texas' Gulf Coast—has for years been engulfed in an under-reported war, as the Gulf Cartel and its rogue offspring the Zetas battle for dominance over the narco-trafficking "plaza" (zone of control). The current flare-up in the border town of Reynosa may signal a turning point. Street gun-battles have become so common in the town that authorities have instituted a color-coded alert system to warn citizens. The town has been on "red alert" repeatedly over the past days, and there are signs that the long struggle is entering an endgame.

The Philippines' inimitable President Rodrigo Duterte is being his usual charming self. The United Nations special rapporteur on extrajudicial killings, Agnes Callamard, arrived in the country on May 5 to attend a conference on drug policy and human rights at the University of the Philippines. Callamard is of course a harsh critic of Duterte's campaign of police and paramilitary terror against low-level drug dealers and users. Duterte wasted not a moment in voicing defiance, warning drug users: "And here's the shocker: I will kill you. I will really kill you. And that's why the rapporteur of the UN is here, investigating extrajudicial killing."